Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
31
A hub connects:
Answer:
Both b and c
A hub, like a switch, is used to connect devices within the same network, but it is less efficient.
32
Which of the following is a characteristic of a LAN?
Answer:
High data transfer rates
LANs typically offer high data transfer rates because of the short distances involved and the use of high-speed cabling like Ethernet.
33
A hub is associated with:
Answer:
Star networks
In a star topology, a central hub or switch connects all network devices.
34
An online multiplayer game where players connect to a central game server is an example of:
Answer:
Client-server model
The central server manages the game state and coordinates the actions of all the players (clients).
35
What is a hybrid model?
Answer:
A network that combines elements of both client-server and P2P models
Some systems, like Skype, use a central server for authentication (client-server) but establish direct connections between users for calls (P2P).
36
A network that connects a company's offices in New York and London is a:
Answer:
WAN
A WAN is necessary to connect offices that are separated by such a large geographical distance.
37
What does PAN stand for?
Answer:
Personal Area Network
PAN stands for Personal Area Network, which is a network for interconnecting devices centered on an individual person's workspace.
38
What does a packet contain?
Answer:
All of the above
A packet is a formatted block of data that includes the payload (the actual data), header information (like source and destination IP addresses), and sometimes a trailer.
39
Which model is better for a large corporation with thousands of employees?
Answer:
Client-server model
A large organization requires the centralized administration, security, and scalability that the client-server model provides.
40
What is the main advantage of a wireless network over a wired network?
Answer:
Mobility and convenience
The primary benefit of wireless networks is the ability to connect devices without physical cables, allowing for greater mobility.